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<title>class OpenSSL::OCSP::CertificateId - openssl: Ruby Standard Library Documentation</title>


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    <li ><a href="#method-i-cmp_issuer">#cmp_issuer</a>
    <li ><a href="#method-i-hash_algorithm">#hash_algorithm</a>
    <li ><a href="#method-i-initialize_copy">#initialize_copy</a>
    <li ><a href="#method-i-issuer_key_hash">#issuer_key_hash</a>
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    <main role="main" aria-labelledby="class-OpenSSL::OCSP::CertificateId">
    <h1 id="class-OpenSSL::OCSP::CertificateId" class="class">
      class OpenSSL::OCSP::CertificateId
    </h1>

    <section class="description">
    
<p>An <a href="CertificateId.html"><code>OpenSSL::OCSP::CertificateId</code></a> identifies a certificate to the CA so that a status check can be performed.</p>

    </section>

      <section id="5Buntitled-5D" class="documentation-section">





                <section id="public-class-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Class Methods</h3>
                </header>

                  <div id="method-c-new" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          OpenSSL::OCSP::CertificateId.new(subject, issuer, digest = nil) &rarr; certificate_id
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>
                      <div class="method-heading">
                        <span class="method-callseq">
                          OpenSSL::OCSP::CertificateId.new(der_string)                    &rarr; certificate_id
                              </span>
                            </div>
                      <div class="method-heading">
                        <span class="method-callseq">
                          OpenSSL::OCSP::CertificateId.new(obj)                           &rarr; certificate_id
                              </span>
                            </div>

                            <div class="method-description">
                              <p>Creates a new <a href="CertificateId.html"><code>OpenSSL::OCSP::CertificateId</code></a> for the given <em>subject</em> and <em>issuer</em> <a href="../X509.html"><code>X509</code></a> certificates.  The <em>digest</em> is a digest algorithm that is used to compute the hash values. This defaults to SHA-1.</p>

<p>If only one argument is given, decodes it as DER representation of a certificate ID or generates certificate ID from the object that responds to the <a href="CertificateId.html#method-i-to_der"><code>to_der</code></a> method.</p>

                              <div class="method-source-code" id="new-source">
            <pre>static VALUE
ossl_ocspcid_initialize(int argc, VALUE *argv, VALUE self)
{
    OCSP_CERTID *id, *newid;
    VALUE subject, issuer, digest;

    GetOCSPCertId(self, id);
    if (rb_scan_args(argc, argv, &quot;12&quot;, &amp;subject, &amp;issuer, &amp;digest) == 1) {
        VALUE arg;
        const unsigned char *p;

        arg = ossl_to_der_if_possible(subject);
        StringValue(arg);
        p = (unsigned char *)RSTRING_PTR(arg);
        newid = d2i_OCSP_CERTID(NULL, &amp;p, RSTRING_LEN(arg));
        if (!newid)
            ossl_raise(eOCSPError, &quot;d2i_OCSP_CERTID&quot;);
    }
    else {
        X509 *x509s, *x509i;
        const EVP_MD *md;

        x509s = GetX509CertPtr(subject); /* NO NEED TO DUP */
        x509i = GetX509CertPtr(issuer); /* NO NEED TO DUP */
        md = !NIL_P(digest) ? ossl_evp_get_digestbyname(digest) : NULL;

        newid = OCSP_cert_to_id(md, x509s, x509i);
        if (!newid)
            ossl_raise(eOCSPError, &quot;OCSP_cert_to_id&quot;);
    }

    SetOCSPCertId(self, newid);
    OCSP_CERTID_free(id);

    return self;
}</pre>
                              </div>
                            </div>


                          </div>

                          </section>

                <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Instance Methods</h3>
                </header>

                  <div id="method-i-cmp" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          cmp(other) &rarr; true or false
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>Compares this certificate id with <em>other</em> and returns <code>true</code> if they are the same.</p>

                              <div class="method-source-code" id="cmp-source">
            <pre>static VALUE
ossl_ocspcid_cmp(VALUE self, VALUE other)
{
    OCSP_CERTID *id, *id2;
    int result;

    GetOCSPCertId(self, id);
    GetOCSPCertId(other, id2);
    result = OCSP_id_cmp(id, id2);

    return (result == 0) ? Qtrue : Qfalse;
}</pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-cmp_issuer" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          cmp_issuer(other) &rarr; true or false
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>Compares this certificate id’s issuer with <em>other</em> and returns <code>true</code> if they are the same.</p>

                              <div class="method-source-code" id="cmp_issuer-source">
            <pre>static VALUE
ossl_ocspcid_cmp_issuer(VALUE self, VALUE other)
{
    OCSP_CERTID *id, *id2;
    int result;

    GetOCSPCertId(self, id);
    GetOCSPCertId(other, id2);
    result = OCSP_id_issuer_cmp(id, id2);

    return (result == 0) ? Qtrue : Qfalse;
}</pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-hash_algorithm" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          hash_algorithm &rarr; String
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>Returns the ln (long name) of the hash algorithm used to generate the issuerNameHash and the issuerKeyHash values.</p>

                              <div class="method-source-code" id="hash_algorithm-source">
            <pre>static VALUE
ossl_ocspcid_get_hash_algorithm(VALUE self)
{
    OCSP_CERTID *id;
    ASN1_OBJECT *oid;
    BIO *out;

    GetOCSPCertId(self, id);
    OCSP_id_get0_info(NULL, &amp;oid, NULL, NULL, id);

    if (!(out = BIO_new(BIO_s_mem())))
        ossl_raise(eOCSPError, &quot;BIO_new&quot;);

    if (!i2a_ASN1_OBJECT(out, oid)) {
        BIO_free(out);
        ossl_raise(eOCSPError, &quot;i2a_ASN1_OBJECT&quot;);
    }
    return ossl_membio2str(out);
}</pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-initialize_copy" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">initialize_copy</span><span
                                class="method-args">(p1)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="initialize_copy-source">
            <pre>static VALUE
ossl_ocspcid_initialize_copy(VALUE self, VALUE other)
{
    OCSP_CERTID *cid, *cid_old, *cid_new;

    rb_check_frozen(self);
    GetOCSPCertId(self, cid_old);
    GetOCSPCertId(other, cid);

    cid_new = OCSP_CERTID_dup(cid);
    if (!cid_new)
        ossl_raise(eOCSPError, &quot;OCSP_CERTID_dup&quot;);

    SetOCSPCertId(self, cid_new);
    OCSP_CERTID_free(cid_old);

    return self;
}</pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-issuer_key_hash" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          issuer_key_hash &rarr; String
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>Returns the issuerKeyHash of this certificate ID, the hash of the issuer’s public key.</p>

                              <div class="method-source-code" id="issuer_key_hash-source">
            <pre>static VALUE
ossl_ocspcid_get_issuer_key_hash(VALUE self)
{
    OCSP_CERTID *id;
    ASN1_OCTET_STRING *key_hash;
    VALUE ret;

    GetOCSPCertId(self, id);
    OCSP_id_get0_info(NULL, NULL, &amp;key_hash, NULL, id);

    ret = rb_str_new(NULL, key_hash-&gt;length * 2);
    ossl_bin2hex(key_hash-&gt;data, RSTRING_PTR(ret), key_hash-&gt;length);

    return ret;
}</pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-issuer_name_hash" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          issuer_name_hash &rarr; String
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>Returns the issuerNameHash of this certificate ID, the hash of the issuer’s distinguished name calculated with the hashAlgorithm.</p>

                              <div class="method-source-code" id="issuer_name_hash-source">
            <pre>static VALUE
ossl_ocspcid_get_issuer_name_hash(VALUE self)
{
    OCSP_CERTID *id;
    ASN1_OCTET_STRING *name_hash;
    VALUE ret;

    GetOCSPCertId(self, id);
    OCSP_id_get0_info(&amp;name_hash, NULL, NULL, NULL, id);

    ret = rb_str_new(NULL, name_hash-&gt;length * 2);
    ossl_bin2hex(name_hash-&gt;data, RSTRING_PTR(ret), name_hash-&gt;length);

    return ret;
}</pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-serial" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          serial &rarr; Integer
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>Returns the serial number of the certificate for which status is being requested.</p>

                              <div class="method-source-code" id="serial-source">
            <pre>static VALUE
ossl_ocspcid_get_serial(VALUE self)
{
    OCSP_CERTID *id;
    ASN1_INTEGER *serial;

    GetOCSPCertId(self, id);
    OCSP_id_get0_info(NULL, NULL, NULL, &amp;serial, id);

    return asn1integer_to_num(serial);
}</pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-to_der" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          to_der &rarr; String
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>Encodes this certificate identifier into a DER-encoded string.</p>

                              <div class="method-source-code" id="to_der-source">
            <pre>static VALUE
ossl_ocspcid_to_der(VALUE self)
{
    OCSP_CERTID *id;
    VALUE str;
    long len;
    unsigned char *p;

    GetOCSPCertId(self, id);
    if ((len = i2d_OCSP_CERTID(id, NULL)) &lt;= 0)
        ossl_raise(eOCSPError, NULL);
    str = rb_str_new(0, len);
    p = (unsigned char *)RSTRING_PTR(str);
    if (i2d_OCSP_CERTID(id, &amp;p) &lt;= 0)
        ossl_raise(eOCSPError, NULL);
    ossl_str_adjust(str, p);

    return str;
}</pre>
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